Porsche 911 GT2 RS vs Porsche 911 GT3 RS

Picture of Porsche 911 GT3 RS (991 facelift)

Category	Porsche 911 GT3 RS	Porsche 911 GT2 RS
Engine layout	4.0 l B6	3.8 l B6
Max power (ps / bhp)	520 / 513	700 / 690
Max torque (Nm / lb-ft)	469 / 346	750 / 553
Curb weight (kg / lb)	1471 / 3243	1515 / 3340
Power / tonne (ps / bhp)	354 / 349	462 / 456
Average price	€213,000	€295,000
Auto insurance group	50	50

Lap Times

Track	Porsche 911 GT3 RS	Porsche 911 GT2 RS
Queensland Raceway Sprint Circuit	0:54.99	0:54.31
Mendig AFB Circuit	1:43.96	1:42.29
Virginia International Raceway Grand East Course (post 01/2014)	2:41.60	2:37.80
Anglesey Coastal	1:11.20	1:12.01
Vairano Handling Course	1:11.73	1:08.25
Road Atlanta	1:26.24	1:24.88
Motortrend Figure-8	0:22.00	0:21.90
Buttonwillow Configuration 13	1:50.40	1:50.42
Nürburgring Nordschleife	6:56.40	6:47.30
NCM Motorsports Park Grand Full	2:04.34	2:03.75
Pannonia Ring	2:04.20	2:03.30
Circuit de Nevers Magny-Cours Club	1:17.68	1:15.91
Willow Springs	1:23.67	1:21.08
Le Mans (Bugatti)	1:44.06	1:44.35
Road America	2:18.57	2:15.17
Circuit de Nevers Magny-Cours GP	1:50.36	1:47.16
Sachsenring	1:26.39	1:26.61
Hockenheim Short	1:05.40	1:03.80
Zhejiang Circuit	1:34.25	1:34.25

Acceleration (mph)

Speed & distance	Porsche 911 GT3 RS	Porsche 911 GT2 RS
0 - 30 mph	1.1 s	1.2 s
0 - 40 mph	1.7 s	1.6 s
0 - 50 mph	2.3 s	2.1 s
0 - 60 mph	2.9 s	2.6 s
0 - 70 mph	3.6 s	3.2 s
0 - 80 mph	4.5 s	3.9 s
0 - 90 mph	5.5 s	4.6 s
0 - 100 mph	6.6 s	5.5 s
0 - 110 mph	7.9 s	6.7 s
0 - 120 mph	9.5 s	7.8 s
0 - 130 mph	11.2 s	9.1 s
0 - 140 mph	13.4 s	10.7 s
0 - 150 mph	15.9 s	11.8 s
Est. 1/8 mile	7.8 s @ 105.6 mph	7.0 s @ 113.7 mph
1/4 mile	10.9 s	10.1 s @ 137.9 mph

Acceleration (kph)

Speed & distance	Porsche 911 GT3 RS	Porsche 911 GT2 RS
0 - 40 kph	1.1 s	1.1 s
0 - 50 kph	1.3 s	1.2 s
0 - 60 kph	1.5 s	1.3 s
0 - 80 kph	2.3 s	2.3 s
0 - 100 kph	3.1 s	2.6 s
0 - 120 kph	4.2 s	3.8 s
0 - 130 kph	4.8 s	3.8 s
0 - 140 kph	5.8 s	4.7 s
0 - 160 kph	6.8 s	5.4 s
0 - 180 kph	8.6 s	6.7 s
0 - 200 kph	10.5 s	7.9 s
0 - 220 kph	13.3 s	9.9 s
0 - 240 kph	16.9 s	12.0 s
0 - 250 kph	18.8 s	13.0 s
0 - 300 kph	39.5 s	22.9 s
1000 m	20.3 s @ 256.3 kph	18.6 s @ 281.0 kph

Rolling acceleration

Speed	Porsche 911 GT3 RS	Porsche 911 GT2 RS
60 - 100 kph (4)	3.9 s	2.7 s
60 - 100 kph (5)	5.2 s	3.8 s
80 - 120 kph (4)	3.8 s	2.5 s
80 - 120 kph (5)	4.9 s	3.2 s
80 - 120 kph (6)	6.2 s	4.2 s
80 - 120 kph (7)	7.7 s	5.6 s
80 - 160 kph (4)	7.2 s	5.0 s
80 - 160 kph (5)	9.9 s	6.5 s
80 - 160 kph (6)	13.2 s	8.5 s
70 - 90 kph	2.1 s	2.0 s
70 - 120 kph	3.7 s	3.1 s
70 - 140 kph	5.0 s	4.0 s
80 - 120 kph	1.9 s	1.5 s
Est. 100 - 140 kph	2.5 s	1.9 s
100 - 200 kph	8.2 s	5.2 s
Est. 200 - 300 kph	29.8 s	14.8 s

Braking distance

Speed	Porsche 911 GT3 RS	Porsche 911 GT2 RS
50 kph - 0	7 m (24 ft)	8 m (25 ft)
100 kph - 0	28 m (93 ft)	29 m (96 ft)
130 kph - 0	55 m (180 ft)	55 m (180 ft)
150 kph - 0	60 m (197 ft)	67 m (220 ft)
200 kph - 0	105 m (344 ft)	114 m (375 ft)
300 kph - 0	230 m (756 ft)	243 m (796 ft)
60 mph - 0	28 m (92 ft)	27 m (87 ft)
70 mph - 0	39 m (128 ft)	44 m (144 ft)

General performance

Category	Porsche 911 GT3 RS	Porsche 911 GT2 RS
Top speed	312 kph (194 mph)	342 kph (213 mph)
Est. max acceleration	0.90 g (9 m/s²)	1.06 g (10 m/s²)
18m slalom	76.6 kph (47.6 mph)	76.5 kph (47.5 mph)
36m slalom	157.0 kph (97.6 mph)	151.0 kph (93.8 mph)
Fuel economy	10.9 l/100 km (22 mpg US / 26 UK)	9.8 l/100 km (24 mpg US / 29 UK)
Lateral acceleration	1.24 g (12 m/s²)	1.17 g (11 m/s²)
Downforce @ 200 kph	200 kg (441 lbs)	142 kg (313 lbs)

Summary

Category	Porsche 911 GT3 RS	Porsche 911 GT2 RS
Track Performance	96	100
Straight line speed	61	100
Overall	82	100

Verdict

911 GT2 RS is the fastest by considerable margin.

This comparison has been viewed 1.7k times.

hostboy 2y ago

In the real world they very much are similar on most road courses. However, in my computing simulation process they appear to be 22 seconds apart on Germany's north loop both in standard form and 18 seconds apart in Weissach form

https://docs.google.com/spreadsheets/d/1mc-JJgfFrlYYFGuv3ohleC_rh7k8G3yp73DMb6UpCD8/edit?usp=sharing

GT3 RS: ((20600m/(300km/h/(321m*0.3048m))x(1497kg/589hp)/1.31g)x0.0095 x 0.700 to 0.725

GT2 RS: ((20600m/(300km/h/(301m*0.3048m))x(1523kg/775hp)/1.31g)x0.0095 x 0.925 to 0.950

A Weissach-equipped GT3 RS is capable of producing a maximum of 841 hp on Germany's north loop circuit, while an equivalent contemporary GT2 RS is capable of "only" 837 hp. Sorry GT2 fans, but the GT3 is the real track star.

benedekpuskas 3y ago

I think with the same amount of power the GT3 RS would be faster on track.

196ss 3y ago

I disagree.
If you just put turbo on this car and increase power to 700 or may be even 800 hp it won't get any faster on the track, probably would be slower.
The original power/chassis balance would ruined and the car would be very hard to handle while cornering.

benedekpuskas 3y ago @196ss

I mean the GT2 RS is only faster because it has more power.
The GT3 RS is faster at 18 and 36 meter slalom, has better braking performance, is lighter, and it also has better lateral acceleration.

2

196ss 3y ago @benedekpuskas

Well, if so, yes. GT3RS is definitely faster in corners.

2

Cauf40f50 4y ago

Sexy